This beautiful Miami garden was designed as a laboratory for tropical plants.

Where monkeys run wild and the humans are caged.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A crumbling hospital from the 1850s on Roosevelt Island.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

One of the last Jazz Age "Wonder Theaters" in New York City.

This Bronx apartment building is officially recognized as the birthplace of hip-hop.

Hundreds of iconic jazz records were made in this church-like space.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

The longest step street in the city.

A former connection to City Island, it has been abandoned since the 1930s.

A whimsical monument deep in this park commemorates the groups that helped build it.